Having sold more than 20 million records to date, she has achieved popularity and success in China, Hong Kong, Taiwan, Japan, Singapore, and Malaysia.

She debuted her singing career in Taiwan and signed to Rock Records in October 1997.

She received Mandarin training upon arriving in Taiwan as her mother tongue is Cantonese.

Her debut album, Grown Up Overnight, was released in September 1999, but had many promotions cancelled due to the 1999 Taiwan earthquake.

[4] On September 8, 2019, Leong announced their divorce at a press conference for her new album in Taipei.